DO NOT MERGE try CI on the newest FreeBSD 15 GCE image

A new image has just been published.

Issue #3967

.cirrus.yml

@@ -1,19 +1,19 @@
 task:
   only_if: $CIRRUS_BRANCH == 'main' || $CIRRUS_BASE_BRANCH == 'libc-0.2' ||  $CIRRUS_BASE_BRANCH == 'main'
   matrix:
-    - name: nightly freebsd-13
-      freebsd_instance:
-        image_family: freebsd-13-3
-    - name: nightly freebsd-14
-      freebsd_instance:
-        image: freebsd-14-1-release-amd64-ufs
+    #- name: nightly freebsd-13
+      #freebsd_instance:
+        #image_family: freebsd-13-3
+    #- name: nightly freebsd-14
+      #freebsd_instance:
+        #image: freebsd-14-1-release-amd64-ufs
     # Temporarily disable CI on FreeBSD 15.0-CURRENT until the libmd solib
     # fallout is cleaned up.
     # FIXME https://github.com/rust-lang/libc/issues/3967
     # https://github.com/rust-lang/libc/issues/3967
-    #- name: nightly freebsd-15
-    # freebsd_instance:
-    # image_family: freebsd-15-0-snap
+    - name: nightly freebsd-15
+      freebsd_instance:
+        image_family: freebsd-15-0-snap
   setup_script:
     - pkg install -y libnghttp2 curl
     - curl https://sh.rustup.rs -sSf --output rustup.sh